In this paper, numerical solution of beta-type Stirling engine was presented considering its non-ideal regenerator. To this end, the second-order model including heat and power losses was used. Then, a numerical code was applied for calculating geometrical and physical optimum values of the engine. To confirm the obtained results, the physical and geometrical parameters of the GPU-3 engine were...

Abstract This article discusses in detail the adiabatic models investigations of alpha Stirling engine with study influence performance factors; analysis is a crucially effective method because it close to real and practical engines when compared isothermal analysis. The numerical model was created using MATLAB software, an extremely useful tool for solving equations. includes two models: ideal...

in the present study the adiabatic temperature of gaseous fuels were calculated and the influence of effective parameters of flame temperature was discussed. firstly, a new computational program named ftc (flame temperature calculations) was prepared to calculate the adiabatic flame temperature and then the effect of initial temperatures of combustion air and fuel, excess air content and oxygen...

The exhaust of an automotive engine is one the main causes air pollution. These days, many researchers are investigating waste heat recovery engines. A two-cylinder gamma-type Stirling chosen for this purpose. a diesel as input source This work explains isothermal, ideal adiabatic, and non-ideal simple analysis engine. set differential equations solved using Runge-Kutta 4 th order method MATLAB...

We propose a quantum Otto cycle in two spin-1/2 anisotropic XY model transverse external magnetic field. first characterize the parameter regime that working medium operates as an engine adiabatic regime. Then, we consider finite-time behavior of with and without utilizing shortcut to adiabaticity (STA) technique. STA schemes guarantee dynamics system follows path, at expense introducing contro...

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The simplest form of the adiabatic gas relation is the observation that the temperature of a thermally insulated gas increases when it is compressed and decreases when it is expanded. According to the historical review of this subject by Kuhn, the first publication documenting this behavior was by the Scottish physician William Cullen in the mid17th century. Experimental observations were summa...

A loss in smoothness of a switching process decreases the accuracy of an adiabatic invariant. Here we show that for classical Hamiltonian systems the degree of smoothness can be observed in the signal.